Highly selective surface adsorption-induced efficient photodegradation of cationic dyes on hierarchical ZnO nanorod-decorated hydrolyzed PIM-1 nanofibrous webs
Autor: | Bekir Satilmis, Young-Kyu Han, Kugalur Shanmugam Ranjith, Tamer Uyar, Yun Suk Huh |
---|---|
Přispěvatelé: | Ranjith, Kugalur Shanmugam, Satılmış, Bekir, Uyar, Tamer, Sağlık Hizmetleri Meslek Yüksekokulu, Bekir Satılmış / 0000-0002-3704-8628 |
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
02 engineering and technology
Polymers of intrinsic microporosity (PIMs) 010402 general chemistry 01 natural sciences Catalysis Biomaterials Colloid and Surface Chemistry Adsorption Photodegradation HPIM-ZnO nanofibers chemistry.chemical_classification Electrospinning Chemistry Cationic polymerization Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Cationic dye adsorption Chemical engineering Hierarchical fibrous web Nanorod 0210 nano-technology Selectivity |
Zdroj: | Journal of Colloid and Interface Science |
Popis: | Selectivity of catalysts toward harmful cationic pollutants in industrial wastewater remains challenging but is of crucial importance in environmental remediation processes. Here, we present a complex network of a hydrolyzed polymer of intrinsic microporosity (HPIM)-based electrospun nanofibrous web with surface functional decoration of ZnO nanorods (NRs) as a hierarchical platform for selective and rapid degradation of cationic dyes. Over a single species or binary mixtures, cationic dyes were selectively adsorbed by the HPIM surface, which then rapidly degraded under simultaneous photoirradiation through the ZnO NRs. Both HPIM and ZnO exhibited high electronegative surfaces, which induced the selectivity towards the cationic dyes and rapidly degraded the pollutants with the production of reactive oxygen species under photoirradiation. Further, as a free-standing web, the catalytic network could be easily separated and reused without any significant loss of catalytic activity after multiple cycles of use. The hierarchical platform of ZnO/HPIM-based heterostructures could be a promising catalytic template for selective degradation of synthetic dyes in mixed wastewater samples. (C) 2019 Elsevier Inc. All rights reserved. |
Databáze: | OpenAIRE |
Externí odkaz: |